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Lithium-free sodium batteries exit the lab and enter US production (newatlas.com)

submitted 5 months ago by [email protected] to c/[email protected]

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[–] [email protected] 2 points 5 months ago (3 children)

Just my impression on seeing videos of these tests on videos, which seem to result in the battery exploding violently and essentially escaping any attempt at confinement instead of catching fire. https://www.youtube.com/watch?v=W1ya_ls1zkA

[–] [email protected] 1 points 5 months ago

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[–] [email protected] 1 points 5 months ago* (last edited 5 months ago) (1 children)

Interesting. I wonder how that compares to a similar Li-ion cell. Also it's a shame there wasn't a close-up on the markings of the battery in that video to know what it is exactly. I don't imagine all cells are equal.

The battery packs from the article, for instance, are not constructed from cylindrical cells, but from large thin and flat square cells. The cathode material appears to be unique as well, as far as I can tell; who knows what's in those blue cylindrical cells.

[–] [email protected] 1 points 5 months ago

You can look at other videos in his channel that answer your doubts. 18650 battery cells are usually connected together into battery packs and BMS, and the industrial process is pretty standardized. Just like Li-ion you can have different cell structures, but the inside remains the same.

[–] [email protected] 1 points 5 months ago (1 children)

That's way less extreme than I would've expected.

[–] [email protected] 1 points 5 months ago* (last edited 5 months ago)

What were you expecting? It's literally an explosion. Add a few thousand of them in row in EV battery style if you want a bigger explosion.